Dino Lottaz, 49, devised the smoking wall in his Restaurant Caravelle in Bosingen, in the canton of Fribourg Canton, Switzerland (located in the west of the country, Switzerland consists of 26 cantons (member states), when local authorities introduced a ban on smoking in public areas, including bars and restaurants, this month.

He said: "I enjoy a cigarette myself so I know how smokers feel. Someone suggested cutting holes in the wall. It's a bit of a joke but it actually works quite well. It can get very cold sometimes so it's not really an option to stand outside for a smoke. "My clients seem to approve. They can legally have a cigarette without leaving the establishment."